1 # sparc64 configuration
2 mainmenu "Linux Kernel Configuration for 64-bit SPARC"
14 select HAVE_DYNAMIC_FTRACE
24 config GENERIC_CMOS_UPDATE
28 config GENERIC_CLOCKEVENTS
47 config STACKTRACE_SUPPORT
51 config LOCKDEP_SUPPORT
55 config ARCH_MAY_HAVE_PC_FDC
59 config ARCH_HAS_ILOG2_U32
63 config ARCH_HAS_ILOG2_U64
71 config HAVE_SETUP_PER_CPU_AREA
74 config ARCH_NO_VIRT_TO_BUS
80 config GENERIC_HARDIRQS_NO__DO_IRQ
85 prompt "Kernel page size"
86 default SPARC64_PAGE_SIZE_8KB
88 config SPARC64_PAGE_SIZE_8KB
91 This lets you select the page size of the kernel.
93 8KB and 64KB work quite well, since SPARC ELF sections
94 provide for up to 64KB alignment.
96 Therefore, 512KB and 4MB are for expert hackers only.
98 If you don't know what to do, choose 8KB.
100 config SPARC64_PAGE_SIZE_64KB
103 config SPARC64_PAGE_SIZE_512KB
106 config SPARC64_PAGE_SIZE_4MB
112 bool "Enable seccomp to safely compute untrusted bytecode"
116 This kernel feature is useful for number crunching applications
117 that may need to compute untrusted bytecode during their
118 execution. By using pipes or other transports made available to
119 the process as file descriptors supporting the read/write
120 syscalls, it's possible to isolate those applications in
121 their own address space using seccomp. Once seccomp is
122 enabled via /proc/<pid>/seccomp, it cannot be disabled
123 and the task is only allowed to execute a few safe syscalls
124 defined by each seccomp mode.
126 If unsure, say Y. Only embedded should say N here.
128 source kernel/Kconfig.hz
131 bool "Support for hot-pluggable CPUs"
135 Say Y here to experiment with turning CPUs off and on. CPUs
136 can be controlled through /sys/devices/system/cpu/cpu#.
137 Say N if you want to disable CPU hotplug.
139 source "init/Kconfig"
141 config GENERIC_HARDIRQS
145 menu "General machine setup"
147 source "kernel/time/Kconfig"
150 bool "Symmetric multi-processing support"
152 This enables support for systems with more than one CPU. If you have
153 a system with only one CPU, say N. If you have a system with more than
156 If you say N here, the kernel will run on single and multiprocessor
157 machines, but will use only one CPU of a multiprocessor machine. If
158 you say Y here, the kernel will run on single-processor machines.
159 On a single-processor machine, the kernel will run faster if you say
162 If you don't know what to do here, say N.
165 int "Maximum number of CPUs (2-1024)"
170 source "drivers/cpufreq/Kconfig"
173 tristate "UltraSPARC-III CPU Frequency driver"
175 select CPU_FREQ_TABLE
177 This adds the CPUFreq driver for UltraSPARC-III processors.
179 For details, take a look at <file:Documentation/cpu-freq>.
184 tristate "UltraSPARC-IIe CPU Frequency driver"
186 select CPU_FREQ_TABLE
188 This adds the CPUFreq driver for UltraSPARC-IIe processors.
190 For details, take a look at <file:Documentation/cpu-freq>.
194 # Global things across all Sun machines.
195 config GENERIC_LOCKBREAK
198 depends on SMP && PREEMPT
200 config RWSEM_GENERIC_SPINLOCK
203 config RWSEM_XCHGADD_ALGORITHM
207 config GENERIC_FIND_NEXT_BIT
211 config GENERIC_HWEIGHT
213 default y if !ULTRA_HAS_POPULATION_COUNT
215 config GENERIC_CALIBRATE_DELAY
220 prompt "SPARC64 Huge TLB Page Size"
221 depends on HUGETLB_PAGE
222 default HUGETLB_PAGE_SIZE_4MB
224 config HUGETLB_PAGE_SIZE_4MB
227 config HUGETLB_PAGE_SIZE_512K
228 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
231 config HUGETLB_PAGE_SIZE_64K
232 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
245 depends on NEED_MULTIPLE_NODES
247 # Some NUMA nodes have memory ranges that span
248 # other nodes. Even though a pfn is valid and
249 # between a node's start and end pfns, it may not
250 # reside on that node. See memmap_init_zone()
252 config NODES_SPAN_OTHER_NODES
254 depends on NEED_MULTIPLE_NODES
256 config ARCH_POPULATES_NODE_MAP
259 config ARCH_SELECT_MEMORY_MODEL
262 config ARCH_SPARSEMEM_ENABLE
264 select SPARSEMEM_VMEMMAP_ENABLE
266 config ARCH_SPARSEMEM_DEFAULT
286 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
287 computer. These are credit-card size devices such as network cards,
288 modems or hard drives often used with laptops computers. There are
289 actually two varieties of these cards: the older 16 bit PCMCIA cards
290 and the newer 32 bit CardBus cards. If you want to use CardBus
291 cards, you need to say Y here and also to "CardBus support" below.
293 To use your PC-cards, you will need supporting software from David
294 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
295 for location). Please also read the PCMCIA-HOWTO, available from
296 <http://www.tldp.org/docs.html#howto>.
298 To compile this driver as modules, choose M here: the
299 modules will be called pcmcia_core and ds.
318 bool "Sun Logical Domains support"
320 Say Y here is you want to support virtual devices via
325 select ARCH_SUPPORTS_MSI
327 Find out whether your system includes a PCI bus. PCI is the name of
328 a bus system, i.e. the way the CPU talks to the other stuff inside
329 your box. If you say Y here, the kernel will include drivers and
330 infrastructure code to support PCI bus devices.
338 source "drivers/pci/Kconfig"
340 config SUN_OPENPROMFS
341 tristate "Openprom tree appears in /proc/openprom"
343 If you say Y, the OpenPROM device tree will be available as a
344 virtual file system, which you can mount to /proc/openprom by "mount
345 -t openpromfs none /proc/openprom".
347 To compile the /proc/openprom support as a module, choose M here: the
348 module will be called openpromfs. If unsure, choose M.
350 menu "Executable file formats"
352 source "fs/Kconfig.binfmt"
357 select COMPAT_BINFMT_ELF
359 config SYSVIPC_COMPAT
361 depends on COMPAT && SYSVIPC
367 bool "SMT (Hyperthreading) scheduler support"
371 SMT scheduler support improves the CPU scheduler's decision making
372 when dealing with SPARC cpus at a cost of slightly increased overhead
373 in some places. If unsure say N here.
376 bool "Multi-core scheduler support"
380 Multi-core scheduler support improves the CPU scheduler's decision
381 making when dealing with multi-core CPU chips at a cost of slightly
382 increased overhead in some places. If unsure say N here.
384 source "kernel/Kconfig.preempt"
387 bool "Default bootloader kernel arguments"
390 string "Initial kernel command string"
391 depends on CMDLINE_BOOL
392 default "console=ttyS0,9600 root=/dev/sda1"
394 Say Y here if you want to be able to pass default arguments to
395 the kernel. This will be overridden by the bootloader, if you
396 use one (such as SILO). This is most useful if you want to boot
397 a kernel from TFTP, and want default options to be available
398 with having them passed on the command line.
400 NOTE: This option WILL override the PROM bootargs setting!
404 source "drivers/Kconfig"
406 source "drivers/sbus/char/Kconfig"
410 source "arch/sparc64/Kconfig.debug"
412 source "security/Kconfig"
414 source "crypto/Kconfig"